Compact Impact's joining the turn-anything-into-a-speaker fray with its Vibro Sounder vibrating mini-speaker, which will let you pump out some tunes with nothing more than a flat surface. Similar to the Qvoix speaker system
, the Vibro Sounder uses vibration technology to turn your table or desk into a makeshift speaker, with its built-in amplifier pumping out 20 watts RMS. Unlike the Qvoix, however, the Vibro Sounder is intended primarily for portable use, measuring roughly two inches square and weighing just 19 ounces -- although that portability only extends so far, with the device apparently relying solely on AC power. You also don't get much in the way of inputs, with just single 3.5 mm and 2.5 mm jacks to accommodate your various audio devices. Still, if you're looking to shake up your dinner table, you can snag one of these now for $184.